Chair



Dec. 23, 1924. L. w. BROWN CHAI'R Filed Nov. 3

Patented Dec. 23, 1924.

warren stares LEWIS W. BROWN, OF ST. LOUIS, MISSOURI.

CHAIR.

Application filed November T 0 all whom it may concern.

Be it known that I, Lnwrs 1V. Brown, a citizen of the United States,residing at the city of St. Louis and State of Missouri, have inventednew and useful Improvements in Chairs, of which the following is aspecification, reference being had to the accompanying drawings.

My invention relates to improvements in chairs, and more particularly toreclining chairs wherein the chair back may be swung and held atselective angles relative to the chair seat, and my invention consistsin the novel construction, arrangement and combination of parts ashereinafter set forth, definitely pointed out in my claims and illustrated by the accompanying drawing, in which Figure 1 is an elevation ofa chair, constructed in accordance with my invention and embodying myimprovements.

Figure 2 is an enlarged detail rear elevation showing fragments of achair arm and the chair back and the pivotal connection therebetween, asfrom the point designated 22 of Figure 1.

Figure 3 is an enlarged detail front elevation showing fragments of achair arm and a supporting member therefor, and the pivotal connectiontherebetween, as taken from the point designated 33 of Figure 1.

Figure 1 is a transverse, sectional elevation showing a fragment of theseat and its supporting legs, a fragment of the arm supporting memberand the pivotal connection between the chair leg and arm supportingmember as taken on the line indicated 44 of Figure 1.

Figure 5 is an enlarged detail transverse sectional elevation showingfragments of the seat and a supporting leg and a rack bearing strut,together with a pawl or locking device as taken on the indicated line 55of Figure 1.

Figure 6 is an enlarged elevation showing fragments of the seat and backand a spring hinge forming a connection therebctween.

Figure 7 is a perspective view showing a fragment of the rack bearingstrut, the pawl and the means for moving the strut to release it fromthe pawl.

Figure 8 is a perspective view showing the means for holding the armsupporting members against lateral movements, and

Figure 9 is a longitudinal sectional eleva- 30, 1921. SerialIla-513,844.

tion showing an adjustable foot rest attachment for the chair.

Referring by numerals to the drawings, 10 designates the chair seathaving the supporting legs 11 the joints of which are immovablyarticulatedwhereby the seat is held in constant fixed relation to itssupporting legs.

The numeral 12 designates the chair back having the terminals of itsside rails pivotally connected with the chair seat 10 by means of hinges13, which by preference, are of the spring actuated type which normallytend to bring its leaves to juxtaposition, whereby the swingingof thechair back relative to the chair seat is facilitated.

At each of its sides the chair is provided with an arm 14 whose rearends are pivotally secured to the side rails of the back 12, by means ofthe angle plates 15, and whose forward ends are pivotally secured to thearm supports 16 by means of the angle plates 17, and said supports aresecured to the foot legs 1.1 of the chair by means of the swivel plates18.

In order to hold the arm supports against wabbling on their swivelplates 18, I provide the arcuated, metallic guide straps 19, havingfixed relation to the front legs 11, and arranged for traverse byfurcated plates 20 fixed to the arm supports.

Fixed to the rear legs 11, at each side of the chair and adjacent thelower, hinged terminals of the chair back 12 is a pawl 21 whose upperfree end resides in a plane of greater altitude than the chair seat 10and occupies a position laterally removed from the chair seat and theside rails of the chair back 12.

Secured to each chair arm 14, as by a hinge 22, is a strut 23, which asshown in Figure 5, is provided with a channel 2 1, open at its bottom,in which is secured a rack bar 25, whose teeth are engaged by the pawls21. By preference, in order that the rack bar be constantly operativelyrelated to the pawls, I provide a hook 26 at the upper extremity of eachpawl and secure over the mouth of the channel 24; a slotted plate 27.

In order to render more facile a movement of the struts 23 toeffectselective inclination of the chair back 1 provide a lever 28 ateach side of the chair, whose one end is pivotally connected with thechair seat and whose outer free end is arranged for engagement with thestrut 23 and whose downward limit of movement is defined by a stop 29fixed to the chair seat.

The levers 28 are designed for the convenience of a person occupying thechair and are preferably relatively connected as by the rod 80 whereby amanipulation of either lever will effect a like movement of itscompanion, to the end that there is ob viated a requirement for amanipulation of both the levers.

By further preference the chair is provided with a second strutadjusting means, for the convenience of a person standing to the rear ofthe chair, such as a companion, nurse or other attendant of the personoccupying the chair, which means comprises a rod 31, having a. rockingconnection with the rear legs 11, by means such as the straps 82, whichrod bears at each end a crank 33 for engagement with the levers 28.Interjacent the cranks the rod 31 bears a lever 34:, to which is secureda rod, or its equivalent, 35, which is secured to the chair back as by asleeve 36 and which extends toa point near the upper end of the chairback whereat the rod is provided with a manipulative means such as thering 37.

The chair, if desired, may be equipped with rockers, such as 38, andshown only by dotted lines in Figure 1.

Disposed beneath the chair seat is a frame 39, which is related to theseat and its supporting legs in a manner common to furniture drawers,and which may be bodily withdrawn from beneath the seat, for theexposure of a foot rest 40, which may be swung to an advanced position,as shown by dotted lines in Figure 1 and the frame 39 held in itswithdrawn position as by the props 4L1.

IV hat I claim 1. In a chair, a seat frame, a back frame pivoted to therear of the seat frame for swinging movement, swinging supports pivotednear the front end of the seat frame, arms pivoted to the back frame andto the swinging supports, stationary pawls carried by the seat framenear the rear end thereof and having enlarged engaging ends, barspivoted at their forward ends to said supports and extending rearwardlyat opposite sides of the back frame beyond the seat frame, and havinggrooves in the under sides thereof for receiving the engaging ends ofthe pawls, toothed racks fitted in the grooves and adjustably engaged bythe pawls, slotted plates fixed to the under sides of the bars andhaving the pawls working in the slots in said plates for engagement ofthe latter with the engaging ends of said pawls to limit thedisplacement of the racks relative to the pawls on the raising of thebars, levers pivoted at their forward ends to the sides of the seatframeand having rear cam ends engaged by the bars, and a tie rod locatedrearwardly of the seat frame and connecting the levers together formovement thereof in unison to lift bot-h bars when elevating eitherlever.

2. In a chair of the class described, a chair seat, supporting front andrear legs, said chair seat being immovably secured to said supportinglegs, a chair back, a hinge connection between said seat and said backwhereby said back may be swung relatively to the seat, arm supportspivotally connected to said front legs, side arms pivotally connected tosaid arm supports and to said chair back, a pair of pawls secured tosaid rear legs, a pair of struts pivotally connected to said side armsand arranged for movement with said arms and arm supports, a toothedrack carried by each of said struts for engagement with said pawls, andlevers pivotally connected to said chair seat and adapted to engage thefree ends of said struts for moving said struts to move said chair backto different inclinations.

3. In a chair of the class described, a chair seat, supporting front andrear legs, a slidable foot rest mounted under said seat for slidingmovement between said front legs, said chair seat being immovablesecured to said supporting legs, a chair back, a hinge connectionbetween said seat and said back whereby said back may be swungrelatively to the seat, arm supports pivotally connected to said frontlegs, side arms pivotally connected to said arm supports and to saidchair back, a pair of pawls secured to said rear legs, a pair of strutspivotally connected to said side arms and arranged for movement withsaid arms and arm supports, a toothed -ack carried by each of saidstruts for engagement with said pawls, and levers pivotally connected tosaid chair seat and adapted to engage the free ends of said struts formoving said struts to move said chair back to different inclinations.

In testimony whereof I hereunto ailix my signature.

LEIVIS IV. BROIVN.

